Water-heating system



Jan. 5, 1928. 1,588,788

E. R. WILLIAMS WATER HEATING SYSTEM Filed Dec. 24. 1923 Patented Jan. 5, 1926.

unirsi) STATES 1,568,788 PATENT ortica.

ELMER R. WILLIAMS, F SPRIllG-FELD, MISSOURI, ASSIGNOR OF `ONE-EIGrI-ILI-I TO GEORGE A. MESSICK, ONE-EIGHTI'I TO CLYDE -GAULT, AND ONE-EIGHTH TO THOMAS H. BROWNS, ALL OF SPRINGFIELD, MISSOURI.' f

WATER-HEATING- SYSTEM.

Application l'ed December 24,1923. Serial No. 682,515.

To alltel-i071@ it may concern.'

Be it known that I, ELMER R. WILLIAMS, a citizen of the United States, residing at Springfield, in the county of Greene and State' ofMissouri, have invented certain new andV useful Improvements in Tater-Heating Systems, of which the following is a specification, reference being had to the accompan 7ing drawings.

T is invention relates to certain new and useful improvements in `,water heating systerms and` has for its primary object the pro- )fisi'on ot novel means whereby water may be rapidly heated-to a high degree for consumption. y

Another object ot the invention is to provide a device of theabove character wherein the means provided to produce the desired result is of a most simple and practical construction so as to meet with all of the requirements for a successful commercial use.

With the above general objects iii View, and yothers that will become apparent as the nature ofthe Vinvention is better understood,

, any suitable source of water supply, such as I a city iiiain, and an upper oroutlet reservoir 7 having,- an outlet S connecting with a faucet 9 for controlling' the discharge of heated water at the point of consumption.

Although it is not essential to the invenconstructed by dividing; a tank 1() 'into-two compartiments' by means oi' a horizontal partition 11 which is disposed nearer the lop of the tank 10 than to the bottoni thereof so that the` reservoir 5 will be Aot greater ca pacity than 'the reservoir kA water circulating connection is provided betweeiithe bott-oni of the reservoir 5 and the topo-i' the latter, as at 12, this connection including `a coil ,13 .adapted to `be heated by the sameconsistsinthe novel form, combination, thereservoirs are shown preferablyr4 any suitable means, such as a gas burner 14. A water circulating connection is also provided between the lower reservoir 5 and the outlet reservoir 7, as at 15, and they include a second coil 1G also heated by the burner 141.. The lower portion` of the tank 10-is preferably provided with a central chamber 17 in which the coils are positioned. The upper wall of this chamber is provided with a central opening communicating with an axial flue 18 provided for the exit of products of combustion from the burner 141.

The coil 16 has its inlet connected by means of a pipe 19 with the upper reservoir -7 sothat water circulating connections are provided troni the bottom of said reservoir to the top thereof which include the auxiliary coil 16.I It will be seenthat when the burner 14 is lighted and the faucet 9 is closed water will pass from the upper reservoir 7 through pipe 19 and coil 16 to pipe 15 and then back into the upper reservoir.

How-ever, when the faucet 9 is opened there would bey aitendency of the water to flow from the inlet ot the coil '16 through pipe 19 into the u per reservoir 7, and in order to prevent t is, a check valve 2O is employed between the coil 16 and the reservoir 7 in the pipe 19, which check valve will obviously, however, permit circulation of the water from reservoir 7 through pipe 19, coil 16 and pipe 1.5 back to said upper reservoir. InA order that over-heating of the water may not occur and that additional heat may be furnished automatically when the heat ot the `water becomes too low, a control valve 21 for the burner 14 may be operatively connected with the expansible element 22 of a thermostat in any well Vkno-wn or preferred manner, which thermostat is associated with they pipe 15 ynear the inlet ot' the coil 16. One Jform of this arrangement is shown in Figure 2 in which the gas inlet pipe is indicated at I and an outlet pipe at O, this' outlet pipe communi .eating with the `burner 14 and the tliermostat tting T which is inserted in the right han-:l branch of the pipe 1,5 has passages P and P connecting with the inlet I and outv let 0 and between these passages, communication is established through the valve 21. The thermostatic element 22 controlling the operation ot this valve is located in a conduit Q connecting adjacent ends of the right hand section of the pipe 15 so that it is constantly subjected to the passage of water through this pipe.

In operation, the water enters the reservoir 5 through pipe 6 and overflows through pipe 15 as well as pipe 12, so as to lill the coils 13 and 16 and the reservoir '7. Vith the faucet 9 closed and the burner 11 lighted, a circulation of water is had from reservoir 5 through the right hand portion ot' pipe 15 and coil 16 to the left hand portion of pipe 15 and thence into the upper reservoir T, through pipe 19 past the check valve 2O into the coil 16 and thence through the lett hand portion of pipe 15 back to said upper reservoir. In addition, the water passes from the bottom of the lower reservoir 5 through coil 13 and pipe 1Q into the top of the reservoir 5. lVhen the faucet 9 is opened all water that tiows therethrough must pass through coil 16 into the upper reservoir 7 and thence into the outlet pipe S. Thus, water which has previously been warmed by passing through the circulating connections 12 must pass from reservoir 5 through pipe 15 and be heated a second time in passing through coil 16 betere flowing to the outlet piping S. It will be obvious that when water from the right hand branch of the pipe 15 is passing through the coil 16 to the reservoir 7, this water will be cooler than that circulated through the coil by the pipe 19 and accordingly during such passage, the action of the heater will be greater.

From the foregoing description it is believed that the construction and operation, as well as the advantages of the present invention, will be readily understood and appreciated by those skilled in the art.

Minor changes may be made without departing from the spirit and scope ot' the inrention as claimed.

lVhat I claim is Al. In a water heating apparatus, a lower reservoir, an upper reservoir located thereahove, an inlet pipe leading into the bottom of the lower reservoir, a chamber within the lower portion of the lower reservoir having an outlet liue extending through the upper reservoir, heating means at the bottom of the chamber. a coil located within said chamber and haring one end communicating with the lower reservoir at the bottom thereof and its other end communicating with the upper portion of the lower reservoir, a pipe within the lower reservoir communicating at one end with the bottom of the upper reservoir and having its other end opening into the lower reservoir near the top thereof, and a coil connected with said second named pipe and extending about the first. named coil and communicating with the top of the upper reservoir.

2. In a water heating apparatus, a casing,

a partition Within the casing dividing the same into a lower reservoir and an upper reservoir, an inlet pipe at the bottom of the lower reservoir, a shell located within the lower portion of the lower reservoir and constituting a heating chamber, heating means at the bottom ot' said chamber, a flue leading from said chamber through the top of the upper reservoir, an outlet pipe at the top oit the upper reservoir, a coil within said chamber having one end communicating with the lower portion ot the lower reserroir and having its other end extended laterallj,v through the casing and extending exteriorlyv thereof and communicating with the top of the lower reservoir, a. U-shaped pipe haring one vertical leg located within the lower reservoir and communicating with the bottom of the said upper reservoir and its other leg located within the lower reservoir and terminating short of said partition, the bight portion of said U-shaped pipe being located below said chamber, and a second coil within the chamber in surrounding relation to the irst named coil and having one end connected with said bight portion and its other end extended laterallyy through the casing and connected with the top portion ot the upper reservoir.

8. In a water heating system, upper and lower reservoirs and a heater, an inlet connection at the lower end of the lower reser- Voir, a ralred outlet connection for the upper end of the upper reservoir, a circulating connection between the upper end of each of said reservoirs and the lower end thereot' each embodying a coil subjected to the action ot' said heater and a connection between the upper end of the lower reservoir and the circulation connection of the upper reservoir between the lower end otl the upper reservoir and said coil.

1. In a water heating' system, upper and lower reservoirs and a heater, an inlet connect-ion at the lower end of the lower reservoir, a ralred outlet connection for the upper end of the upper reservoir, a circulating connection between the upper end ot each of said reservoirs and the lower end thereof each embodying a coil subjected to the action ol" said heater and a connection 1oetween the upper end otI the lower reservoir and the-circulation connection of the upper reservoir between the lower end of the upper reservoir and said coil. the eirculating connection `tor the upper reservoir including a. check valve opening toward the coil and located between the inlet end of the circulating connection and a connection between said circulating connection with the upper end of the lower reservoir.

5. In a water heating system, upper and lower reservoirs and a heater, an inlet connection at the lower end of the lower reserroir, a valred outlet connection for the upper end of the upper reservoir, a circulating connection between the upper end of each ,of seid reservoirs and the lower end thereof tween the upper end of the lower reservoir 10 and the circulating connection of the upper reservoir includinga therinostatic control for the heater opera-ted by the temperature of the water passing therethrough.

In testimony whereof I hereunto aix my 15 signature.

ELMER R. WILLIAMS. 

